﻿#region Copyright
// Copyright (c) 2011-2012 RaisingForce Team (Alikin Sergey)
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
// restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following
// conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
#endregion

using System;
using System.Diagnostics.Contracts;
using System.Globalization;
using RaisingForce.Raise.ObjectModel;

namespace RaisingForce.Raise.Presentation.Rules
{
    public abstract class MeasureValidationRule<TValue, TMeasure> :
        BaseValidationRule<double>
        where TMeasure : IMeasure<double>
    {
        #region Constructors

        protected MeasureValidationRule()
            : base()
        { }

        #endregion

        #region Protected Declarations

        protected void CheckMeasure()
        {
            if (this.Measure == null)
            {
                throw new InvalidOperationException(
                    "Measure property value should be set up before IsValid call.");
            }
            Contract.Ensures(this.Measure != null);
        }

        #endregion

        #region Properties

        private TMeasure measure;

        public TMeasure Measure
        {
            get { return this.measure; }
            set
            {
                if (value == null)
                {
                    throw new ArgumentNullException("Measure");
                }
                Contract.EndContractBlock();
                this.measure = value;
            }
        }

        #endregion

        #region Base Overrides

        sealed protected override bool TryParse(
            string s,
            NumberStyles style,
            IFormatProvider provider,
            out double value)
        {
            return double.TryParse(s, style, provider, out value);
        }

        #endregion
    }
}
